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HOME > Acute Crit Care > Volume 36(1); 2021 > Article
Case Report
Cardiology
A successfully treated case of primary purulent pericarditis complicated by cardiac tamponade and pneumopericardium
Jong Wook Beom1orcid, Yeekyoung Ko1orcid, Ki Yung Boo1orcid, Jae-Geun Lee1orcid, Joon Hyouk Choi1orcid, Seung-Jae Joo1orcid, Ji Hwan Moon2orcid, Su Wan Kim3orcid, Song-Yi Kim1orcid
Acute and Critical Care 2020;36(1):70-74.
DOI: https://doi.org/10.4266/acc.2020.00234
Published online: October 12, 2020

1Division of Cardiology, Department of Internal Medicine, Jeju National University Hospital, Jeju National University School of Medicine, Jeju, Korea

2Department of Internal Medicine, Jeju National University Hospital, Jeju National University School of Medicine, Jeju, Korea

3Department of Thoracic and Cardiovascular Surgery, Jeju National University Hospital, Jeju National University School of Medicine, Jeju, Korea

Corresponding author Song-Yi Kim Division of Cardiology, Department of Internal Medicine, Jeju National University School of Medicine, 15 Aran 13-gil, Jeju 63241, Korea Tel: +82-64-717-1296 Fax: +82-64-717-1131 E-mail: ttoromom@jejunu.ac.kr
• Received: May 9, 2020   • Revised: July 2, 2020   • Accepted: July 7, 2020

Copyright © 2021 The Korean Society of Critical Care Medicine

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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  • Acute pericarditis is caused by various factors, but purulent pericarditis is rare. Primary purulent pericarditis in immunocompetent hosts is very rare in the modern antibiotics era. We report a successfully treated case of primary purulent pericarditis complicated with cardiac tamponade and pneumopericardium in an immunocompetent host. A 69-year-old female was referred from another hospital because of pleuritic chest pain with a large amount of pericardial effusion. She was diagnosed with acute pericarditis accompanied by cardiac tamponade. We performed emergency pericardiocentesis, with drainage of 360 ml of bloody pericardial fluid. The culture grew Streptococcus anginosus, confirming the diagnosis of acute purulent pericarditis. We performed pericardiostomy because cardiomegaly and pneumopericardium were aggravated after removal of the pericardial drainage catheter. The patient received antibiotics for a total of 23 days intravenously and was discharged with oral antibiotic therapy. Purulent pericarditis is one of the rare forms of pericarditis and is life-threatening. A multimodality approach is required for proper diagnosis and treatment of this disease.
Acute pericarditis may be caused by infectious, noninfectious, or autoimmune disorders. Though purulent pericarditis is rare, it is a rapidly progressive infection with a mortality rate of 20% to 30% [1]. In the modern antibiotics era, purulent pericarditis is usually associated with nosocomial bloodstream infections, thoracic surgery, immunosuppression, or underlying pericardial disease [2,3]. In immunocompetent hosts, primary purulent pericarditis without evidence of underlying infection elsewhere and recent trauma history is very rare. Until now, cardiac tamponade and pneumopericardium have not been reported in patients with purulent pericarditis. We present a case of a 69-year-old immunocompetent previously healthy adult patient who was diagnosed as having primary acute purulent pericarditis complicated by cardiac tamponade and pneumopericardium.
This case report was approved by Institutional Review Board of Jeju National University Hospital (IRB No. JEJUNUH 2019-12-010). We obtained written informed consent from the patient.
A 69-year-old female was referred from another hospital because of a large amount of pericardial effusion. She had complained of pleuritic chest pain of 4 days’ duration. The pain started from the back, moved to the substernal area, and was worse when breathing or moving. In the emergency department, the patient complained of chest pain and difficulty breathing but denied fever, chills, toothache, cough, hemoptysis, and urinary symptoms. She also denied any history of recent dental caries, respiratory infections, chest wall trauma, surgeries, travel, or exposure to sick contacts. She was on medication for hypertension and diabetes mellitus and had been using an inhaled corticosteroid for asthma for 2 months. She denied any alcohol, smoking, or illicit drug use.
At the time of presentation, the patient was well-oriented and had a blood pressure of 98/70 mm Hg, a heart rate of 54 beats/min, a respiratory rate of 24/minute, and a body temperature of 37.2°C. However, 30 minutes after initial presentation, her blood pressure decreased to 79/58 mm Hg, and her heart rate increased to 100 beats/min. Cardiopulmonary examination showed decreased heart sounds and a coarse breathing sound over the bilateral lower lung field. Jugular venous distension and hepato-jugular reflux were observed. Blood test results were as follows: white blood cell (WBC) 20.4 × 103/μl, hemoglobin 12.3 g/dl, hematocrit 36.5%, platelets 239 × 103/μl, C-reactive protein 13.83 mg/dl, procalcitonin 5.14 mg/ml, blood urea nitrogen 50.9 mg/dl, serum creatinine 1.92 mg/dl, pro-brain natriuretic peptide 1,833 pg/ml, creatine kinase-MB 3.27 ng/ml, hs-troponin T 0.088 ng/ml, aspartate aminotransferase 221 IU/L, alanine aminotransferase 193 IU/L, hemoglobin A1c 7.2%, and negative HIV antigen/antibody test. Chest radiography revealed cardiomegaly with 70% cardiothoracic ratio and bilateral pleural effusion (Figure 1A). An electrocardiogram showed sinus tachycardia, low-voltage QRS complexes, and diffuse ST-segment elevations (Figure 1B). Chest computed tomography (CT) revealed a moderate amount of pericardial effusion with diffuse pericardial enhancement that compressed the right ventricle (Figure 2A). In the parasternal long axis view of echocardiography, a large amount of pericardial effusion with 2 cm compression of the right ventricle was observed (Figure 2B). The patient was diagnosed with acute pericarditis accompanied by cardiac tamponade. An emergency pericardiocentesis was performed, and approximately 360 ml of bloody pericardial effusion was drained. After pericardiocentesis, the amount of pericardial effusion decreased by 1.5 cm in the parasternal long axis view of echocardiography (Figure 2C). Tests for culture, cell analysis, cytology, and tuberculosis were performed with the pericardial fluid. Laboratory findings revealed acute purulent pericarditis with 200,000/μl of WBC composed of 99% segmented neutrophils. No bacteria were found via a gram stain of the pericardial fluid. However, third-generation cephalosporin and ibuprofen were empirically used. On the patient’s fourth in-hospital day, Streptococcus anginosus was identified in blood and pericardial fluid cultures, and the infection was susceptible to ceftriaxone and levofloxacin but resistant to ampicillin.
On the 4th in-hospital day, pericardial effusion was drained from the pericardial catheter, and the catheter was removed. Unfortunately, chest radiography comparisons on the 5th and 7th in-hospital days demonstrated that severe cardiomegaly, and new air bubbles appeared surrounding the main pulmonary artery. Chest CT showed loculated and increasing pericardial effusion with multi-focal air bubbles that indicated aggravated purulent pericarditis (Figure 2D). It seemed that the patient’s clinical condition worsened due to abscess formation despite the use of appropriate antibiotics.
Pericardiostomy was performed through the subxiphoid approach on the 9th in-hospital day. There were loose adhesions surrounding the whole heart, especially on the cardiac base and right atrium. After careful adhesiolysis, approximately 200 ml of grayish pus was drained (Figure 3). Massive saline irrigation was performed, a curved chest tube was inserted below the left ventricular apex, and a Jackson-Pratt catheter was inserted beside the right atrium.
The patient’s condition gradually improved, and the drains were removed two weeks after the operation. The patient was discharged 24 days after admission with oral antibiotics for 14 days. The total duration of antibiotic therapy was 36 days, and the patient is doing well without any evidence of recurrence.
We report a case of primary purulent pericarditis complicated by cardiac tamponade and pneumopericardium and caused by S. anginosus in an immunocompetent, previously healthy adult female patient. Although the patient was using an inhaled corticosteroid, it is known to have few systemic side effects and has not been reported to increase infections other than pneumonia [4]. The patient had been complaining of pleuritic chest pain that was gradually worsening for 4 days. She was diagnosed with cardiac tamponade associated with a large amount of pericardial effusion and underwent emergency pericardiocentesis. Despite proper treatment, chest radiography showed worsening of cardiomegaly and pneumopericardium, so a pericardiostomy was performed.
Purulent pericarditis, a localized infection within the pericardial space, is a rare disease that is associated with lifethreatening complications such as cardiac tamponade [5]. In the pre-antibiotic era (1889–1943), it occurred mainly in young adult patients with underlying infectious disease. But in the modern-antibiotic era (1944–1975), it is most common in elderly adult patients with preexisting pericardial diseases such as uremia or tumor [2]. Other predisposing factors include immunosuppression, alcohol abuse, thoracic surgery, and chest trauma [6].
Common pathogens of purulent pericarditis were Staphylococcus aureus (36%) and Streptococcus pneumonia (21%) [5]. Before the advent of penicillin, pneumococcus was the most common pathogen in the setting of direct spread from an intrathoracic focus [7]. However, after penicillin became available, the number of pneumococcal infections has decreased, including that of purulent pericarditis [8]. Gram-negative, anaerobic organisms and fungal pathogens are increasing in proportion as causes of primary purulent pericarditis. S. anginosus is a subgroup of viridans streptococci that is part of the normal flora of the mouth, sinuses, throat, feces, and vagina [9]. However, it can cause a number of infections and has a tendency toward abscess formation. It is also often seen as part of a polymicrobial infection in patients with oral, head and neck, and abdominal infections. There are several ways by which this strain gains access to the thoracic space: aspiration of oral secretions, direct implantation during surgery or trauma, by extension from a contiguous focus such as a subphrenic abscess, and via the bloodstream from a distant focus [10]. Our case involved primary purulent pericarditis in an immunocompetent adult who was previously healthy, caused by S. anginosus. The origin of S. anginosus, the pathogen of infection, was uncertain, and pericarditis occurred spontaneously without evidence of any other infection.
This case highlights the importance of physical examination and early diagnostic testing such as echocardiography and chest CT. This allows a faster diagnosis, performance of pericardiocentesis, and administration of antibiotics. When the patient’s condition worsened even with proper treatment, chest CT was promptly examined and pericardiostomy immediately performed. If not treated in time, purulent pericarditis can have a mortality rate approaching 100% [11].
In conclusion, we report an extremely rare case of primary purulent pericarditis complicated by cardiac tamponade and pneumopericardium caused by S. anginosus. We emphasize the importance of clinical suspicion, early diagnostic testing, and multimodality therapy (pericardiocentesis, pericardiostomy, and appropriate antibiotic therapy) to ensure patient survival.

CONFLICT OF INTEREST

No potential conflict of interest relevant to this article was reported.

AUTHOR CONTRIBUTIONS

Conceptualization: JWB, SYK, SWK. Data curation: JWB, SYK. Methodology: JWB, SWK. Project administration: SYK, SJJ. Writing–original draft: JWB. Writing–review&editing: all authors.

Figure 1.
Baseline examination. (A) Chest radiography showing marked cardiomegaly with 70% cardiothoracic ratio and bilateral pleural effusion. (B) Electrocardiogram showing low-voltage QRS and diffuse ST elevation.
acc-2020-00234f1.jpg
Figure 2.
Changes in chest computed tomography (Chest CT) and echocardiogram. (A) Chest CT scan showing compression of the right ventricle (white arrows) due to pericardial effusion. (B) Transthoracic echocardiogram showing massive pericardial effusion. (C) After pericardiocentesis, transthoracic echocardiogram showing a decreased amount of pericardial effusion. (D) Chest CT scan showing loculated pericardial effusion with multi-focal air bubbles (white arrows) in the pericardial space.
acc-2020-00234f2.jpg
Figure 3.
Surgical finding. (A) Pericardiostomy through the subxiphoid approach. (B) Pericardial effusion with grayish pus.
acc-2020-00234f3.jpg
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